/* ============================================================
   TiT-Robotics — style.css
   Palette : #060e1e (fond), #00ff9f (vert néon), #00aaff (bleu néon)
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:    #060e1e;
  --bg2:   #0b1628;
  --bg3:   #101e35;
  --green: #00ff9f;
  --blue:  #00aaff;
  --text:  #e8f0ff;
  --muted: #7a8caa;
  --border: rgba(0,200,255,0.12);
  --font-head: 'Space Grotesk', sans-serif;
  --font-mono: 'Space Mono', monospace;
  --radius: 10px;
  --ease: 0.25s ease;
}

html { scroll-behavior: smooth; }
body { font-family: var(--font-head); background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; }
a { color: var(--green); text-decoration: none; }
a:hover { opacity: 0.75; }
h1, h2, h3 { font-weight: 700; letter-spacing: -0.02em; }

/* ─── LAYOUT ─── */
.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-dark { background: var(--bg2); }

/* ─── ANIMATIONS ─── */
@keyframes pulse-glow {
  0%, 100% { opacity: 0.6; r: 3; }
  50%       { opacity: 1;   r: 5; }
}
@keyframes antenna-blink {
  0%, 90%, 100% { opacity: 1; }
  95%           { opacity: 0.1; }
}
@keyframes scan { from { transform: translateY(0); } to { transform: translateY(700px); } }
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%      { transform: translateY(-8px); }
}

.antenna-blink { animation: antenna-blink 3s infinite; }
.core-pulse    { animation: pulse-glow 2s ease-in-out infinite; }
.pulse         { animation: pulse-glow 2.5s ease-in-out infinite; }
.hero-robot    { animation: float 4s ease-in-out infinite; }

/* ─── NAV ─── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(6,14,30,0.88); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1080px; margin: 0 auto; padding: 0 24px;
  height: 62px; display: flex; align-items: center; justify-content: space-between;
}
.logo-nav {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 1rem; font-weight: 700;
  color: var(--text); letter-spacing: 0.04em;
}
.logo-dash { color: var(--green); }
.nav-links { list-style: none; display: flex; gap: 28px; }
.nav-links a { color: var(--muted); font-size: 0.88rem; font-weight: 500; transition: color var(--ease); }
.nav-links a:hover { color: var(--green); opacity: 1; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); transition: var(--ease); }

/* ─── HERO ─── */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden; padding-top: 62px;
  background: radial-gradient(ellipse at 50% 40%, rgba(0,170,255,0.07) 0%, transparent 65%),
              radial-gradient(ellipse at 80% 80%, rgba(0,255,159,0.05) 0%, transparent 60%),
              var(--bg);
}
.hero-bg-circuits {
  position: absolute; inset: 0; pointer-events: none; z-index: 0;
}
.hero-center {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: 0; padding: 48px 24px;
}
.hero-robot { margin-bottom: 24px; }

.hero-brand {
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 700; letter-spacing: 0.02em;
  line-height: 1;
}
.hero-tit     { color: var(--green); }
.hero-dash    { color: var(--text); }
.hero-robotics{ color: var(--blue); }

.hero-tagline {
  font-family: var(--font-mono); font-size: 0.95rem; letter-spacing: 0.18em;
  color: var(--muted); margin-top: 10px; text-transform: lowercase;
}
.hero-sub {
  font-size: 0.82rem; font-family: var(--font-mono); letter-spacing: 0.1em;
  color: var(--green); opacity: 0.7; margin-top: 20px; text-transform: uppercase;
}
.hero-sub2 {
  font-size: 1.05rem; color: var(--muted); max-width: 520px;
  margin-top: 10px; line-height: 1.7;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; margin-top: 32px; }

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 26px; border-radius: var(--radius);
  font-family: var(--font-head); font-size: 0.93rem; font-weight: 600;
  transition: all var(--ease); cursor: pointer; border: none; text-decoration: none;
}
.btn-primary { background: var(--green); color: #060e1e; }
.btn-primary:hover { background: #00e88f; opacity: 1; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,255,159,0.25); }
.btn-ghost   { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--green); color: var(--green); opacity: 1; }
.btn-full    { width: 100%; }

/* ─── STATS ─── */
.stats { padding: 44px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat { text-align: center; }
.stat-num   { display: block; font-family: var(--font-mono); font-size: 2.2rem; font-weight: 700; color: var(--green); line-height: 1; }
.stat-label { font-size: 0.78rem; color: var(--muted); margin-top: 6px; display: block; }

/* ─── SECTION HEADER ─── */
.section-header { margin-bottom: 52px; }
.tag {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em;
  color: var(--green); text-transform: uppercase; display: inline-block; margin-bottom: 10px;
}
.section-header h2 { font-size: clamp(1.7rem, 3.5vw, 2.6rem); }

/* ─── TIMELINE ─── */
.timeline { display: flex; flex-direction: column; position: relative; }
.timeline::before {
  content: ''; position: absolute; left: 26px; top: 0; bottom: 0;
  width: 1px; background: var(--border);
}
.tl-item { display: grid; grid-template-columns: 54px 1fr; gap: 24px; padding-bottom: 44px; position: relative; }
.tl-item:last-child { padding-bottom: 0; }

.tl-icon-wrap {
  width: 54px; height: 54px; border-radius: 50%;
  background: var(--bg2); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; position: relative; z-index: 1;
}
.tl-icon-active {
  border-color: var(--green);
  box-shadow: 0 0 18px rgba(0,255,159,0.18);
}
.tl-item--active .tl-icon-wrap { border-color: var(--green); box-shadow: 0 0 18px rgba(0,255,159,0.18); }
.tl-body { padding-top: 12px; }
.tl-body h3 { font-size: 1.02rem; margin-bottom: 8px; }
.tl-body p  { color: var(--muted); font-size: 0.91rem; margin-bottom: 8px; }
.tl-quote {
  font-family: var(--font-mono); font-size: 0.8rem; color: var(--green);
  border-left: 2px solid var(--green); padding-left: 14px;
  margin-top: 14px; line-height: 1.6;
}

/* ─── SERVICES / COMPÉTENCES ─── */
.skills-grid   { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 48px; }
.services-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.service-card {
  background: var(--bg); border: 1px solid var(--border); border-radius: 14px;
  padding: 32px 28px; transition: all var(--ease);
  display: flex; flex-direction: column; gap: 12px;
}
.service-card:hover {
  border-color: rgba(0,200,255,0.3);
  transform: translateY(-4px);
  box-shadow: 0 14px 40px rgba(0,0,0,0.3);
}
.service-card--accent { border-color: rgba(0,255,159,0.25); }
.service-card--accent:hover { border-color: rgba(0,255,159,0.5); box-shadow: 0 14px 40px rgba(0,255,159,0.08); }
.service-robot-icon { display: flex; align-items: center; justify-content: flex-start; }
.service-card h3 { font-size: 1.05rem; }
.service-card p  { color: var(--muted); font-size: 0.9rem; }

/* ─── PROJETS ─── */
.projets-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.projet-card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: 14px;
  overflow: hidden; transition: all var(--ease);
}
.projet-card:hover { transform: translateY(-4px); box-shadow: 0 14px 44px rgba(0,0,0,0.4); border-color: rgba(0,200,255,0.25); }
.projet-img {
  height: 160px; display: flex; align-items: center; justify-content: center;
}
.projet-img--1 { background: radial-gradient(ellipse at center, rgba(0,255,159,0.08) 0%, transparent 70%), var(--bg3); }
.projet-img--2 { background: radial-gradient(ellipse at center, rgba(255,170,0,0.08) 0%, transparent 70%), var(--bg3); }
.projet-img--3 { background: radial-gradient(ellipse at center, rgba(0,170,255,0.08) 0%, transparent 70%), var(--bg3); }
.projet-body { padding: 22px; }
.projet-tag {
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.1em;
  color: var(--blue); text-transform: uppercase; display: block; margin-bottom: 8px;
}
.projet-card h3 { font-size: 0.98rem; margin-bottom: 7px; }
.projet-card p  { color: var(--muted); font-size: 0.87rem; }

/* ─── CONTACT ─── */
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 60px; align-items: start; }
.contact-intro { color: var(--muted); font-size: 1rem; margin-bottom: 28px; line-height: 1.7; }
.contact-list  { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.contact-list li { display: flex; align-items: center; gap: 12px; }
.contact-icon  { font-size: 1rem; }
.contact-list a { color: var(--text); font-size: 0.93rem; }
.contact-list a:hover { color: var(--green); }

.contact-form  { display: flex; flex-direction: column; gap: 18px; }
.form-group    { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.82rem; font-weight: 500; color: var(--muted); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group input,
.form-group textarea,
.form-group select {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 11px 14px; color: var(--text); font-family: var(--font-head); font-size: 0.93rem;
  transition: border-color var(--ease); outline: none; resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: var(--green); }
.form-group select { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237a8caa' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; }
.form-group select option { background: var(--bg2); color: var(--text); }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--muted); }
.form-note { font-size: 0.83rem; color: var(--green); min-height: 20px; }

/* ─── FOOTER ─── */
.footer { padding: 32px 0; border-top: 1px solid var(--border); }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; }
.footer-logo {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 1rem; font-weight: 700; color: var(--text);
}
.footer-tagline { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.14em; color: var(--muted); }
.footer-copy    { font-size: 0.78rem; color: var(--muted); }

/* ─── MANIFESTE ─── */
.manifesto {
  margin-top: 0;
  border: 1px solid rgba(0,255,159,0.2);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(0,255,159,0.04) 0%, rgba(0,170,255,0.04) 100%);
  padding: 36px 40px;
}
.manifesto-inner {
  display: flex; align-items: flex-start; gap: 28px;
}
.manifesto-robot { flex-shrink: 0; margin-top: 4px; }
.manifesto-label {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em;
  color: var(--green); text-transform: uppercase; margin-bottom: 10px; display: block;
}
.manifesto-text blockquote {
  font-family: var(--font-mono); font-size: 1.1rem; font-weight: 700;
  color: var(--text); line-height: 1.4; margin-bottom: 12px;
  border-left: 3px solid var(--green); padding-left: 16px;
}
.manifesto-text p { color: var(--muted); font-size: 0.92rem; line-height: 1.7; }

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .projets-grid  { grid-template-columns: 1fr; }
  .stats-grid    { grid-template-columns: repeat(2, 1fr); }
  .skills-grid   { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 700px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  body.nav-open .nav-links {
    display: flex; flex-direction: column; gap: 0;
    position: fixed; top: 62px; left: 0; right: 0;
    background: var(--bg); padding: 12px 24px 20px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links a { padding: 10px 0; display: block; font-size: 1rem; }
  .form-row { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .skills-grid   { grid-template-columns: 1fr; }
  .contact-grid  { grid-template-columns: 1fr; gap: 36px; }
  .manifesto      { padding: 24px 20px; }
  .manifesto-inner{ flex-direction: column; gap: 16px; }
  .hero-brand    { font-size: 2rem; }
  .tl-item       { grid-template-columns: 44px 1fr; gap: 16px; }
  .tl-icon-wrap  { width: 44px; height: 44px; }
  .timeline::before { left: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  .antenna-blink, .core-pulse, .pulse, .hero-robot { animation: none; }
  * { transition: none !important; }
}

/* ─── CARD LINK ─── */
.btn-card {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 14px;
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em;
  color: var(--green); border: 1px solid rgba(0,255,159,0.25); border-radius: 6px;
  padding: 7px 14px; text-decoration: none; transition: all .2s;
}
.btn-card:hover { background: rgba(0,255,159,0.08); border-color: var(--green); opacity: 1; }